Looking at an E body 70 challenger

Since my car has been Laid up my trans all the sudden started to leak!
I guess i need a new pan Gasket now too!
After my first test ride when i first got it Running the heater core started to leak so i by passed for now. As i could not drop the box that easily so aborted till another day.
I guess all that has happened is expected for a car that was well maintaned but sat the last few years.